Annunciator-drop device



No. 67,702. Patened lan. l0, |899. W. D. MEISSNER.

ANNUNCIATOR DRP DEVICE.

(Applicatio 1ed Ju1y 1 1896.)

(No Model.)

UNITED STATES PATENT OFFICE.

VILLIAM O. MEISSNER, OF CHICAGO, ILLINOIS.

ANNUNClATOR-DROP DEVICE.

SPECIFICATION forming part of Letters Patent No. 617,702, dated January 10, 1899.

Application filed July l, 1896. Serial No. 597,797. (No model.)

T0 all whom t may concern:

Be it known that I, WILLIAM O. MErssNER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Annunciator-Drop Devices, of which the following is a specification.

My invention relates to annunciator-drops, and has for its object to produce a new and improved annunciator-drop, of which the following is a description, reference being had to the accompanying drawings, wherein- Figure lis a plan view of the annunciatordrop and associated parts. Fig. 2 is a side view of the same. Fig. 3 is a front view. Fig. Il is a section on line 4 4., Fig. l. Fig. 5 is a View of the surrounding cover for the electromagnet before being bent into shape.

Like letters refer to like parts throughout the several iigures.

Referring nowto the drawings, the drop proper, A, which drops down so as to expose the plate A', is controlled by means of the electromagnet B. The magnet B is contained within the casing C, which is stamped out of a piece of metal, as shown in Fig. 5, the metal being then bent into shape. The lcore B of the electromagnet makes magnetic contact with one part of the case C. A hinged armature C is connected with the case C and is opposed to the other end of the core of the electromagnet, the casing acting as part of the magnetic circuit. This armature is stamped out of a piece of metal and is provided with the lugs C2 C2, the armature beingheld in place by the rod C3, passing through said lugs, said rod also passing through the lugs C4 on the case C. An arm D is connected with the armature C and extends forwardly over the electromagnet, passing through an openin g in the plate E. Said arm is provided with a hook E', which normally engages the drop A and holds it in position. Said arm is connected with the armature C in such a manner that when in its normal position-that is, the position shown in Fig. 2-the armature is held by means of the weight of said arm away from the case C at its lower end, as indicated. The terminals F of the electromagnet project through openings in the armature C', as shown. A pin A2 projects beneath the drop A and acts ,as a stop for said drop. I have wish to be limited to the exact constructionv herein shown.

The form of the case is such that the spool is protected, being contained therein. This confines the magnetic field of the spool and prevents the magnetic lines of force from threading in the adjacent spools.

The use and operation of my invention are as follows: When the parts are in their' normal positions, as shown in Fig. 2, the drop A is held by means of the hook on the arm D and the lower end of the armature C is held away from the case C. When the circuit is completed through the electromagnet, the lower end of the armature C is drawn toward the case C and the end of the arm D which engages the drop is raised so as to release said drop. The drop is then carried by gravity to the position shown in dotted lines in Fig. 2, the plate A being exposed to view. When the current ceases flowing through the magnet, the parts take their normal position and the drop A can be moved up to its normal position and is again engaged by the hook E.

It will be seen that I have here a simple and convenient annunciator-drop which can be made at a small cost, the casing acting as part of the magnetic circuit. It will also be noticed that the armature is at the lower end of the magnet and is connected to the drop by means of a projecting arm. The parts are stamped out from sheet metal and may be` quickly and cheaply made, and when the parts are put together there is no mechanism which can get 'out of order, the correct work ing of the drop being assured.

All of the parts of my annunciator-drop with the exception of the electromagnet are stamped out of sheet metal and then are assembled so as to form a complete device.

I claim- An annunciator-drop, comprising an electromagnet, a case therefor stamped from a continuous piece of metal, and comprising a body portion provided with wings and adapted when bent into shape to surround the sides and bottom of said magnet, a lug projecting from each side of said body portion near its IOO end and integral therewith, a projecting part a hook connected With said armature extendat the other end of said body portion integral ing past the magnet so as to engage said drop. therewith and adapted when bent into shape to be connected with the core of the magnet WILLIAM O MEISSNER' and cover the end of said magnet, an arma- Witnesses:

ture pivoted to the lugs on said body portion, DONALD M. CARTER,

a drop located at one end ofthe magnet, and R. E. ASHFORD. 

